Patents by Inventor Yoon K. Song

Yoon K. Song has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • High thermal conductivity vertical cavity surface emitting laser (VCSEL)
    Patent number: 7372886
    Abstract: A light generating device such as a VCSEL includes a light generation layer, a top reflector, a bottom reflector, and a high thermal conductivity (HTC) layer between the light generation layer and the bottom reflector. The light generation layer is adapted to generate light having a first wavelength. Heat produced at the light generation layer is more efficiently dissipated due to the presence of the HTC layer. Alternatively, a light generating device such as a VCSEL includes a light generation layer, a top reflector, and a high thermal conductivity (HTC) bottom reflector. Heat produced at the light generation layer is more efficiently dissipated due to the fact that the bottom reflector is a HTC DBR reflector having lower thermal resistivity than a conventional DBR reflector.
    Type: Grant
    Filed: June 7, 2004
    Date of Patent: May 13, 2008
    Assignee: Avago Technologies Fiber IP Pte Ltd
    Inventors: Yoon K. Song, Michael H. Leary, Michael R. T. Tan